hw/pc_piix.c

   1 /*
   2  * QEMU PC System Emulator
   3  *
   4  * Copyright (c) 2003-2004 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #include <glib.h>
  26
  27 #include "hw.h"
  28 #include "pc.h"
  29 #include "apic.h"
  30 #include "pci.h"
  31 #include "usb-uhci.h"
  32 #include "usb-ohci.h"
  33 #include "net.h"
  34 #include "boards.h"
  35 #include "ide.h"
  36 #include "kvm.h"
  37 #include "kvmclock.h"
  38 #include "sysemu.h"
  39 #include "sysbus.h"
  40 #include "arch_init.h"
  41 #include "blockdev.h"
  42 #include "smbus.h"
  43 #include "xen.h"
  44 #include "memory.h"
  45 #include "exec-memory.h"
  46 #ifdef CONFIG_XEN
  47 #  include <xen/hvm/hvm_info_table.h>
  48 #endif
  49
  50 #define MAX_IDE_BUS 2
  51
  52 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
  53 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
  54 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
  55
  56 static void ioapic_init(IsaIrqState *isa_irq_state)
  57 {
  58     DeviceState *dev;
  59     SysBusDevice *d;
  60     unsigned int i;
  61
  62     dev = qdev_create(NULL, "ioapic");
  63     qdev_init_nofail(dev);
  64     d = sysbus_from_qdev(dev);
  65     sysbus_mmio_map(d, 0, 0xfec00000);
  66
  67     for (i = 0; i < IOAPIC_NUM_PINS; i++) {
  68         isa_irq_state->ioapic[i] = qdev_get_gpio_in(dev, i);
  69     }
  70 }
  71
  72 /* PC hardware initialisation */
  73 static void pc_init1(MemoryRegion *system_memory,
  74                      MemoryRegion *system_io,
  75                      ram_addr_t ram_size,
  76                      const char *boot_device,
  77                      const char *kernel_filename,
  78                      const char *kernel_cmdline,
  79                      const char *initrd_filename,
  80                      const char *cpu_model,
  81                      int pci_enabled,
  82                      int kvmclock_enabled)
  83 {
  84     int i;
  85     ram_addr_t below_4g_mem_size, above_4g_mem_size;
  86     PCIBus *pci_bus;
  87     PCII440FXState *i440fx_state;
  88     int piix3_devfn = -1;
  89     qemu_irq *cpu_irq;
  90     qemu_irq *isa_irq;
  91     qemu_irq *i8259;
  92     qemu_irq *cmos_s3;
  93     qemu_irq *smi_irq;
  94     IsaIrqState *isa_irq_state;
  95     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
  96     BusState *idebus[MAX_IDE_BUS];
  97     ISADevice *rtc_state;
  98     MemoryRegion *ram_memory;
  99     MemoryRegion *pci_memory;
 100     MemoryRegion *rom_memory;
 101
 102     pc_cpus_init(cpu_model);
 103
 104     if (kvmclock_enabled) {
 105         kvmclock_create();
 106     }
 107
 108     if (ram_size >= 0xe0000000 ) {
 109         above_4g_mem_size = ram_size - 0xe0000000;
 110         below_4g_mem_size = 0xe0000000;
 111     } else {
 112         above_4g_mem_size = 0;
 113         below_4g_mem_size = ram_size;
 114     }
 115
 116     if (pci_enabled) {
 117         pci_memory = g_new(MemoryRegion, 1);
 118         memory_region_init(pci_memory, "pci", INT64_MAX);
 119         rom_memory = pci_memory;
 120     } else {
 121         pci_memory = NULL;
 122         rom_memory = system_memory;
 123     }
 124
 125     /* allocate ram and load rom/bios */
 126     if (!xen_enabled()) {
 127         pc_memory_init(system_memory,
 128                        kernel_filename, kernel_cmdline, initrd_filename,
 129                        below_4g_mem_size, above_4g_mem_size,
 130                        rom_memory, &ram_memory);
 131     }
 132
 133     if (!xen_enabled()) {
 134         cpu_irq = pc_allocate_cpu_irq();
 135         i8259 = i8259_init(cpu_irq[0]);
 136     } else {
 137         i8259 = xen_interrupt_controller_init();
 138     }
 139     isa_irq_state = g_malloc0(sizeof(*isa_irq_state));
 140     isa_irq_state->i8259 = i8259;
 141     if (pci_enabled) {
 142         ioapic_init(isa_irq_state);
 143     }
 144     isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
 145
 146     if (pci_enabled) {
 147         pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq,
 148                               system_memory, system_io, ram_size,
 149                               below_4g_mem_size,
 150                               0x100000000ULL - below_4g_mem_size,
 151                               0x100000000ULL + above_4g_mem_size,
 152                               (sizeof(target_phys_addr_t) == 4
 153                                ? 0
 154                                : ((uint64_t)1 << 62)),
 155                               pci_memory, ram_memory);
 156     } else {
 157         pci_bus = NULL;
 158         i440fx_state = NULL;
 159         isa_bus_new(NULL);
 160     }
 161     isa_bus_irqs(isa_irq);
 162
 163     pc_register_ferr_irq(isa_get_irq(13));
 164
 165     pc_vga_init(pci_enabled? pci_bus: NULL);
 166
 167     if (xen_enabled()) {
 168         pci_create_simple(pci_bus, -1, "xen-platform");
 169     }
 170
 171     /* init basic PC hardware */
 172     pc_basic_device_init(isa_irq, &rtc_state, xen_enabled());
 173
 174     for(i = 0; i < nb_nics; i++) {
 175         NICInfo *nd = &nd_table[i];
 176
 177         if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
 178             pc_init_ne2k_isa(nd);
 179         else
 180             pci_nic_init_nofail(nd, "e1000", NULL);
 181     }
 182
 183     ide_drive_get(hd, MAX_IDE_BUS);
 184     if (pci_enabled) {
 185         PCIDevice *dev;
 186         if (xen_enabled()) {
 187             dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1);
 188         } else {
 189             dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
 190         }
 191         idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
 192         idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
 193     } else {
 194         for(i = 0; i < MAX_IDE_BUS; i++) {
 195             ISADevice *dev;
 196             dev = isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],
 197                                hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
 198             idebus[i] = qdev_get_child_bus(&dev->qdev, "ide.0");
 199         }
 200     }
 201
 202     audio_init(isa_irq, pci_enabled ? pci_bus : NULL);
 203
 204     pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
 205                  idebus[0], idebus[1], rtc_state);
 206
 207     if (pci_enabled && usb_enabled) {
 208         usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
 209     }
 210
 211     if (pci_enabled && acpi_enabled) {
 212         i2c_bus *smbus;
 213
 214         if (!xen_enabled()) {
 215             cmos_s3 = qemu_allocate_irqs(pc_cmos_set_s3_resume, rtc_state, 1);
 216         } else {
 217             cmos_s3 = qemu_allocate_irqs(xen_cmos_set_s3_resume, rtc_state, 1);
 218         }
 219         smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
 220         /* TODO: Populate SPD eeprom data.  */
 221         smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
 222                               isa_get_irq(9), *cmos_s3, *smi_irq,
 223                               kvm_enabled());
 224         smbus_eeprom_init(smbus, 8, NULL, 0);
 225     }
 226
 227     if (pci_enabled) {
 228         pc_pci_device_init(pci_bus);
 229     }
 230 }
 231
 232 static void pc_init_pci(ram_addr_t ram_size,
 233                         const char *boot_device,
 234                         const char *kernel_filename,
 235                         const char *kernel_cmdline,
 236                         const char *initrd_filename,
 237                         const char *cpu_model)
 238 {
 239     pc_init1(get_system_memory(),
 240              get_system_io(),
 241              ram_size, boot_device,
 242              kernel_filename, kernel_cmdline,
 243              initrd_filename, cpu_model, 1, 1);
 244 }
 245
 246 static void pc_init_pci_no_kvmclock(ram_addr_t ram_size,
 247                                     const char *boot_device,
 248                                     const char *kernel_filename,
 249                                     const char *kernel_cmdline,
 250                                     const char *initrd_filename,
 251                                     const char *cpu_model)
 252 {
 253     pc_init1(get_system_memory(),
 254              get_system_io(),
 255              ram_size, boot_device,
 256              kernel_filename, kernel_cmdline,
 257              initrd_filename, cpu_model, 1, 0);
 258 }
 259
 260 static void pc_init_isa(ram_addr_t ram_size,
 261                         const char *boot_device,
 262                         const char *kernel_filename,
 263                         const char *kernel_cmdline,
 264                         const char *initrd_filename,
 265                         const char *cpu_model)
 266 {
 267     if (cpu_model == NULL)
 268         cpu_model = "486";
 269     pc_init1(get_system_memory(),
 270              get_system_io(),
 271              ram_size, boot_device,
 272              kernel_filename, kernel_cmdline,
 273              initrd_filename, cpu_model, 0, 1);
 274 }
 275
 276 #ifdef CONFIG_XEN
 277 static void pc_xen_hvm_init(ram_addr_t ram_size,
 278                             const char *boot_device,
 279                             const char *kernel_filename,
 280                             const char *kernel_cmdline,
 281                             const char *initrd_filename,
 282                             const char *cpu_model)
 283 {
 284     if (xen_hvm_init() != 0) {
 285         hw_error("xen hardware virtual machine initialisation failed");
 286     }
 287     pc_init_pci_no_kvmclock(ram_size, boot_device,
 288                             kernel_filename, kernel_cmdline,
 289                             initrd_filename, cpu_model);
 290     xen_vcpu_init();
 291 }
 292 #endif
 293
 294 static QEMUMachine pc_machine = {
 295     .name = "pc-0.14",
 296     .alias = "pc",
 297     .desc = "Standard PC",
 298     .init = pc_init_pci,
 299     .max_cpus = 255,
 300     .is_default = 1,
 301 };
 302
 303 static QEMUMachine pc_machine_v0_13 = {
 304     .name = "pc-0.13",
 305     .desc = "Standard PC",
 306     .init = pc_init_pci_no_kvmclock,
 307     .max_cpus = 255,
 308     .compat_props = (GlobalProperty[]) {
 309         {
 310             .driver   = "virtio-9p-pci",
 311             .property = "vectors",
 312             .value    = stringify(0),
 313         },{
 314             .driver   = "VGA",
 315             .property = "rombar",
 316             .value    = stringify(0),
 317         },{
 318             .driver   = "vmware-svga",
 319             .property = "rombar",
 320             .value    = stringify(0),
 321         },{
 322             .driver   = "PCI",
 323             .property = "command_serr_enable",
 324             .value    = "off",
 325         },{
 326             .driver   = "virtio-blk-pci",
 327             .property = "event_idx",
 328             .value    = "off",
 329         },{
 330             .driver   = "virtio-serial-pci",
 331             .property = "event_idx",
 332             .value    = "off",
 333         },{
 334             .driver   = "virtio-net-pci",
 335             .property = "event_idx",
 336             .value    = "off",
 337         },
 338         { /* end of list */ }
 339     },
 340 };
 341
 342 static QEMUMachine pc_machine_v0_12 = {
 343     .name = "pc-0.12",
 344     .desc = "Standard PC",
 345     .init = pc_init_pci_no_kvmclock,
 346     .max_cpus = 255,
 347     .compat_props = (GlobalProperty[]) {
 348         {
 349             .driver   = "virtio-serial-pci",
 350             .property = "max_ports",
 351             .value    = stringify(1),
 352         },{
 353             .driver   = "virtio-serial-pci",
 354             .property = "vectors",
 355             .value    = stringify(0),
 356         },{
 357             .driver   = "VGA",
 358             .property = "rombar",
 359             .value    = stringify(0),
 360         },{
 361             .driver   = "vmware-svga",
 362             .property = "rombar",
 363             .value    = stringify(0),
 364         },{
 365             .driver   = "PCI",
 366             .property = "command_serr_enable",
 367             .value    = "off",
 368         },{
 369             .driver   = "virtio-blk-pci",
 370             .property = "event_idx",
 371             .value    = "off",
 372         },{
 373             .driver   = "virtio-serial-pci",
 374             .property = "event_idx",
 375             .value    = "off",
 376         },{
 377             .driver   = "virtio-net-pci",
 378             .property = "event_idx",
 379             .value    = "off",
 380         },
 381         { /* end of list */ }
 382     }
 383 };
 384
 385 static QEMUMachine pc_machine_v0_11 = {
 386     .name = "pc-0.11",
 387     .desc = "Standard PC, qemu 0.11",
 388     .init = pc_init_pci_no_kvmclock,
 389     .max_cpus = 255,
 390     .compat_props = (GlobalProperty[]) {
 391         {
 392             .driver   = "virtio-blk-pci",
 393             .property = "vectors",
 394             .value    = stringify(0),
 395         },{
 396             .driver   = "virtio-serial-pci",
 397             .property = "max_ports",
 398             .value    = stringify(1),
 399         },{
 400             .driver   = "virtio-serial-pci",
 401             .property = "vectors",
 402             .value    = stringify(0),
 403         },{
 404             .driver   = "ide-drive",
 405             .property = "ver",
 406             .value    = "0.11",
 407         },{
 408             .driver   = "scsi-disk",
 409             .property = "ver",
 410             .value    = "0.11",
 411         },{
 412             .driver   = "PCI",
 413             .property = "rombar",
 414             .value    = stringify(0),
 415         },{
 416             .driver   = "PCI",
 417             .property = "command_serr_enable",
 418             .value    = "off",
 419         },{
 420             .driver   = "virtio-blk-pci",
 421             .property = "event_idx",
 422             .value    = "off",
 423         },{
 424             .driver   = "virtio-serial-pci",
 425             .property = "event_idx",
 426             .value    = "off",
 427         },{
 428             .driver   = "virtio-net-pci",
 429             .property = "event_idx",
 430             .value    = "off",
 431         },
 432         { /* end of list */ }
 433     }
 434 };
 435
 436 static QEMUMachine pc_machine_v0_10 = {
 437     .name = "pc-0.10",
 438     .desc = "Standard PC, qemu 0.10",
 439     .init = pc_init_pci_no_kvmclock,
 440     .max_cpus = 255,
 441     .compat_props = (GlobalProperty[]) {
 442         {
 443             .driver   = "virtio-blk-pci",
 444             .property = "class",
 445             .value    = stringify(PCI_CLASS_STORAGE_OTHER),
 446         },{
 447             .driver   = "virtio-serial-pci",
 448             .property = "class",
 449             .value    = stringify(PCI_CLASS_DISPLAY_OTHER),
 450         },{
 451             .driver   = "virtio-serial-pci",
 452             .property = "max_ports",
 453             .value    = stringify(1),
 454         },{
 455             .driver   = "virtio-serial-pci",
 456             .property = "vectors",
 457             .value    = stringify(0),
 458         },{
 459             .driver   = "virtio-net-pci",
 460             .property = "vectors",
 461             .value    = stringify(0),
 462         },{
 463             .driver   = "virtio-blk-pci",
 464             .property = "vectors",
 465             .value    = stringify(0),
 466         },{
 467             .driver   = "ide-drive",
 468             .property = "ver",
 469             .value    = "0.10",
 470         },{
 471             .driver   = "scsi-disk",
 472             .property = "ver",
 473             .value    = "0.10",
 474         },{
 475             .driver   = "PCI",
 476             .property = "rombar",
 477             .value    = stringify(0),
 478         },{
 479             .driver   = "PCI",
 480             .property = "command_serr_enable",
 481             .value    = "off",
 482         },{
 483             .driver   = "virtio-blk-pci",
 484             .property = "event_idx",
 485             .value    = "off",
 486         },{
 487             .driver   = "virtio-serial-pci",
 488             .property = "event_idx",
 489             .value    = "off",
 490         },{
 491             .driver   = "virtio-net-pci",
 492             .property = "event_idx",
 493             .value    = "off",
 494         },
 495         { /* end of list */ }
 496     },
 497 };
 498
 499 static QEMUMachine isapc_machine = {
 500     .name = "isapc",
 501     .desc = "ISA-only PC",
 502     .init = pc_init_isa,
 503     .max_cpus = 1,
 504 };
 505
 506 #ifdef CONFIG_XEN
 507 static QEMUMachine xenfv_machine = {
 508     .name = "xenfv",
 509     .desc = "Xen Fully-virtualized PC",
 510     .init = pc_xen_hvm_init,
 511     .max_cpus = HVM_MAX_VCPUS,
 512     .default_machine_opts = "accel=xen",
 513 };
 514 #endif
 515
 516 static void pc_machine_init(void)
 517 {
 518     qemu_register_machine(&pc_machine);
 519     qemu_register_machine(&pc_machine_v0_13);
 520     qemu_register_machine(&pc_machine_v0_12);
 521     qemu_register_machine(&pc_machine_v0_11);
 522     qemu_register_machine(&pc_machine_v0_10);
 523     qemu_register_machine(&isapc_machine);
 524 #ifdef CONFIG_XEN
 525     qemu_register_machine(&xenfv_machine);
 526 #endif
 527 }
 528
 529 machine_init(pc_machine_init);